top soil layer

常見例句

Under the action of wind, forced convection of air above ground and water evaporation of top soil layer will be greatly enhanced.
在風(fēng)的作用下，地表上部空氣的強制對流和表土層中的水分蒸發(fā)大大增強，對凍土層的熱狀況產(chǎn)生重要的影響。
TP, rapid available phosphorus, organic content and rapid available iron gradually decreased in the top soil layer of wetland along the flow path.
總體而言，來水中的磷、有機質(zhì)和速效鐵以沿程逐漸降低的方式分布于濕地表層土壤中。
TP, rapid available phosphorus, organic content and rapid available iron were gradually decreased in the top soil layer of wetland along the flow path.
總體而言，來水中的磷、有機質(zhì)和速效鐵以沿程逐漸降低的方式分布于濕地表層土壤中。

C. and A.D. 500 by brushing away the dark top layer of barren desert to reveal the light, sandy soil underneath, wrote Clive Ruggles, an archaeologist from the University of Leicester in the United Kingdom, in an email.
MSN: Peru's mysterious Nazca Lines form a labyrinth, says study